Apparatus for forming inking rollers



L. LA Tou AND A. F. MUNNELL. APPARATUS FOR FORMING INKING ROLLERS- MPLlbATlON FILED MN. 20. I92].

1,420,849. Patented June 27, 1922.

aumwtm UNITED sraras rarest orrics;

LEE n TOUR AND ALTON niirulvivnrn, or o Lena, NEBRASKA, ASSIGNOBS TO rnoeanss ROLLER COMPANY, or OMAHA, NEBRASKA, A coaronatrron.

APPARATUS FOR FORMING INKING ROLLERS.

Application filed January'20, 1921. Serial no. 38,802.

To all whom it may concern Be it known that LEE LA TOUR and ALTON F. MUNNELL,.Cl-tlZ6IlS of. the United States, residing at Omaha, in-the county of Douglas and State of Nebraska, have invented certain new and useful Improvements in Apparatus for Forming Inking Rollers, of which. the following is a specification.

This invention relates to apparatus for forming rubber inking rollers having a greater elasticity or yielding quality than ordinary, and consists of the novel combina tion and arrangement of parts described herein and claimed.

The invention is described in connection with adrawingwherein Fig. 1 is aview, partly in section, of an inking roller and parts connected therewith which are used in its formation. Fig. 2 is a side view of an apertured disc. Fig. 3 is a transverse section on line 3-3 of Fig. 1. Fig. l is a side view'of a molding-rod. Fig. 5 is a side view of a completed inking-roller. Fig. 6 is an end view of the same.

Numeral 1 indicates a shaft having a suitable diameter and length for the inkingroller 2, the latter having a series of longitudinal apertures 3, best shown in Fig. 6, extending entirely therethrough, said apertures being approximately equidistant from each other and at uniform distances from and near to the shaft, said roller also having apertures 4 similarto but at greater radialdistances from the shaft, each aperture 4 being disposed in a plane between the radii of two adjacent apertures 3; and while only two series of apertures 3' and 4' are shown for an inking-roller, any desired number of series of apertures may be formed.

At 5 are indicated a pair of discs, each being provided near its central aperture a with a series of apertures 3, and outwardly of its apertures 3 is provided with a series of apertures 4:, the apertures of each series being disposed at uniform distances from each other, and the apertures 4 being disposed in a plane, radially considered, midway between two adjacent apertures 3. In making an inking-roller, adhesive material is first applied to the shaft, and after the pair of discs 5 have been placed on the shaft inwardly of the ends thereof, a sheet 6 of india rubber is placed and rolled upon that part ofthe shaft between the discs, the amount of rubber thus wound .upon the shaft being such that it will lie closely adjacent to the inner series of apertures 1 Rods 7 are'then'inserted in the apertures 3 of the'discs'to lie upon the rubber windings, said rods first being coatedwith water.-

Specification of Letters Yatent. P w -e g mm 27, 192% glass soap or similar material to prevent adhesion thereof to the rubber, the rods be.- ing of such length that they will protrude outwardly of the discs; the sheet rubber is then wound upon to lie between the discs outwardly of the molding-rods 7, the amount of rubber thus wound being such that it will lie adjacent to the apertures 4 of the discs. Molding-rods 8, similar to the rods 7, are then inserted in the apertures 4 of the discs to lie upon the rubber sheets thus wound; and rolling of the rubber sheet is then continued until the space between the discs is filled, the diameter being equal to the diam eter of the discs.

- The rubber thus prepared is inserted in a tubular mold 9, the cylindrical surface of the rubber first being coated with waterglass soap or similar material so that it may be conveniently removed from the mold. lhe discs 5 are then pressed toward each other by any suitable means, the means herein shown for this purpose being a pair of clamping-bars 10 having sleeves 11 for re-. ceiving the protruding ends of the shaft, the.

ends of the bars 10 being apertured for receiving a pair of bolts 12. By rotating the keepers or nuts 6 which are threaded on the bolts, the bars 10 may be pressed toward each othle for compressing the rubber within the mo The mold and contents are then subjected as a material used in constructing inking means described, and we do not wish to be understood as limiting the invention specifically to inking rollers.

We claim:

1. In resilient-roller forming means, a tubular mold, a pair of adjacently disposed discs in the mold each having a central aperture and having a series of apertures disposed at uniform distances from each other equidistant from the central aperture and having a second series of apertures disposed at uniform'distances from each other outwardly of and in radial planes midway between the apertures of the first named series, a shaft engaging in the central apertures and projecting outwardly of the discs, a series of molding-rods engaging in the apertures of the first named series and projecting outwardly of the discs, a second series of molding-rods engaging in the apertures of the second series and projecting outwardly of LEE LA TOUR. ALTON F. MUNNELL.

lVitnesses lIIRAM A. Srunons, L. J. JENSEN. 

